Dictionary.com

lidar

or LI·DAR

[ lahy-dahr ]
/ ˈlaɪ dɑr /
Save This Word!

noun Electronics, Optics.
a device similar to radar in principle and operation but using infrared laser light instead of radio waves and capable of detecting particles, distant objects, and varying physical conditions in the atmosphere.
QUIZ
FIRE UP YOUR VOCAB FOR A "RED" SYNONYMS QUIZ
No fire engine reds here, only a fierce collection of vibrant words for the color red to test yourself on.
Question 1 of 7
What does "amaranth" mean?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help
Also called laser radar .

Origin of lidar

1960–65; li(ght1) + (ra)dar
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use lidar in a sentence

Scientific definitions for lidar

lidar
[ līdär ]

A method of detecting distant objects and determining their position, velocity, or other characteristics by analysis of pulsed laser light reflected from their surfaces. Lidar operates on the same principles as radar and sonar.
The equipment used in such detection. See also Doppler effect radar sonar.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK